<template>
  <div class="app-container">

    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="资讯标题" prop="newsTitle">
        <el-input
          v-model="queryParams.newsTitle"
          placeholder="请输入资讯标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="发布部门" prop="newsUnit">
        <el-input
          v-model="queryParams.newsUnit"
          placeholder="请输入发布部门"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="资讯类型" prop="newsType">
        <el-select
          v-model="queryParams.newsType"
          placeholder="请选择资讯类型"
          clearable
          filterable
        >
          <el-option
            v-for="dict in dict.type.news_type"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:news:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:news:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:news:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:news:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="newsList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="资讯标题" align="center" prop="newsTitle"  width="400"/>
      <!-- <el-table-column label="资讯内容" align="center" prop="newsContent" width="400">
        <template slot-scope="scope">
          <span>{{ scope.row.newsContent != null ? scope.row.newsContent.slice(0, 35) + '...' : '' }}</span>
        </template>
      </el-table-column> -->
      <el-table-column label="发布部门" align="center" prop="newsUnit" />
      <el-table-column label="资讯类型" align="center" prop="newsType">
        <template slot-scope="scope">
          <dict-tag
            :options="dict.type.news_type"
            :value="scope.row.newsType"
          />
        </template>
      </el-table-column>
      <el-table-column label="发布时间" align="center" prop="transitTime" >
        <template slot-scope="scope">
          {{ parseTime(scope.row.transitTime, '{y}-{m}-{d} ') }}
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:news:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:news:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改资讯详情对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="1000px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="12">
            <el-form-item label="资讯标题" prop="newsTitle">
              <el-input v-model="form.newsTitle" placeholder="请输入资讯标题" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="发布部门" prop="newsUnit">
              <el-input v-model="form.newsUnit" placeholder="请输入发布部门" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="资讯类型" prop="newsType">
              <el-select
                v-model="form.newsType"
                placeholder="请选择资讯类型"
                clearable
                filterable
              >
                <el-option
                  v-for="dict in dict.type.news_type"
                  :key="dict.value"
                  :label="dict.label"
                  :value="dict.value"
                />
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="地区" prop="region">
              <el-select
                v-model="form.region"
                placeholder="请选地区"
                clearable
                filterable
              >
                <el-option
                  v-for="dict in deptlist"
                  :key="dict.areaShortCode"
                  :label="dict.deptName"
                  :value="dict.areaShortCode"
                />
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="发布时间" prop="transitTime">
              <el-date-picker
                clearable
                v-model="form.transitTime"
                type="date"
                value-format="yyyy-MM-dd"
                placeholder="请选择发布时间">
              </el-date-picker>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="24">
            <el-form-item label="资讯内容">
              <editor v-model="form.newsContent" :min-height="192"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12" style="margin-left:80px">
            <el-upload
              class="upload-demo"
              :action="uploadUrl"
              :on-preview="handlePreview"
              :on-success="jobOnChange"
              :on-remove="handleRemove"
              :before-remove="beforeRemove"
              multiple
              
              :file-list="fileList">
              <el-button size="small" type="primary">点击上传</el-button>
              <!-- <div slot="tip" class="el-upload__tip">只能上传3个文件</div> -->
            </el-upload>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listNews, getNews, delNews, addNews, updateNews,getDeptList } from "@/api/system/news";

export default {
  name: "News",
  dicts:[
    "news_type"
  ],
  data() {
    return {
      uploadUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 资讯详情表格数据
      newsList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        newsTitle: null,
        newsContent: null,
        newsUnit: null,
        newsType: null,
        createName: null,
        updateName: null,
        orderByColumn:'createTime',
        isAsc:'desc',
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      },
      fileList: [],
      // 地区列表
      deptlist:[],
    };
  },
  created() { 
    this.getList();
    this.getDept()
  },
  methods: {
    /** 查询资讯详情列表 */
    getList() {
      this.loading = true;
      listNews(this.queryParams).then(response => {
        this.newsList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        newsTitle: null,
        newsContent: null,
        newsUnit: null,
        newsType: null,
        delFlag: null,
        createBy: null,
        createTime: null,
        createName: null,
        updateBy: null,
        updateTime: null,
        updateName: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      console.log("url:",process.env.VUE_APP_TARGET )
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.fileList = [];
      this.open = true;
      this.title = "添加资讯详情";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getNews(id).then(response => {
        this.form = response.data;
        this.fileList = response.data.attachFiles;
        this.open = true;
        this.title = "修改资讯详情";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.form.attachFiles = this.fileList
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateNews(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addNews(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除资讯详情编号为"' + ids + '"的数据项？').then(function() {
        return delNews(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/news/export', {
        ...this.queryParams
      }, `news_${new Date().getTime()}.xlsx`)
    },

    handleRemove(file, fileList) {
      for(let i = 0; i< this.fileList.length; i++){
        if(this.fileList[i].name == file.name && file.url == this.fileList[i].url){
          this.fileList.splice(i,1)
        }
      };
    },
    handlePreview(file) {
      const x = new XMLHttpRequest()
        x.open('GET', 'https://' + location.host + file.url, true)
        x.responseType = 'blob'
        x.onload = function() {
          const url = window.URL.createObjectURL(x.response)
          const a = document.createElement('a')
          a.href = url
          a.download = file.name
          a.click()
        }
        x.send()
    },
    jobOnChange(file){
      this.fileList.push({name:file.newFileName,url:file.fileName})
    },
    handleExceed(files, fileList) {
      this.$message.warning(`当前限制选择 3 个文件，本次选择了 ${files.length} 个文件，共选择了 ${files.length + fileList.length} 个文件`);
    },
    beforeRemove(file, fileList) {
      return this.$confirm(`确定移除 ${ file.name }？`);
    },
    // 获取地区列表
    getDept(){
      let data = {
        parentId:210
      }
      getDeptList(data).then(response => {
        this.deptlist = response.data;
      });
    },
  }
};
</script>
<style scoped>
::v-deep .el-select {
  width: 100%;
}
</style>